JP2023547603A - adhesive tape assembly - Google Patents

Abstract

The present invention provides an improved fastening tape assembly. The fastening tape assembly according to the invention comprises a carrier element comprising a nonwoven layer and a polymeric film layer, an adhesive layer and a release layer. A fastening tape assembly according to the invention may be included in a Z-fold assembly.

Description

[Cross reference to related applications]
This application has the benefit of U.S. Provisional Application No. 63/092,626, filed on October 16, 2020, and U.S. Provisional Application No. 63/188,304, filed on May 13, 2021. , the disclosures of which are incorporated herein by reference in their entirety.

[Technical field]
FIELD OF THE INVENTION This invention relates generally to securing tabs, particularly adhesive tape assemblies, such as those found in connection with disposable absorbent articles such as diapers, and other applications. The present invention provides enhanced or improved performance for adhesive tape assemblies.

Fastening tabs are sometimes used in connection with disposable absorbent articles such as diapers, and other applications. Disposable absorbent articles such as baby diapers and/or adult incontinence diapers are generally known in the art. Disposable articles (eg, diaper chassis) are often constructed with a liquid absorbent core (which facilitates separation of liquid from the user). The liquid-absorbent core comprises a liquid-permeable topsheet (located adjacent to the wearer when the disposable article is worn) and a water-impermeable topsheet (forming the outer surface of the disposable article when worn), such as a polyethylene film. The layers are wrapped between a liquid-impermeable backsheet (made of laminated non-woven fabric). Disposable articles generally have a rear part for covering the rear part of the wearer, a front part for covering the front part of the wearer, and a crotch part between these parts. has.

Disposable articles may be used in reusable form, requiring washing after each use, or may be in disposable form, for one-time use. The disposable form includes one or more adhesive tape assemblies. Adhesive tape assemblies are typically used to maintain used diapers in a "rolled up" configuration after use, which facilitates handling and disposal. This disposal tape must be adhered to the outside of the diaper. However, the outer surface of diapers is designed to be increasingly soft. Therefore, a flexible yet strong adhesive that adheres well to the nonwoven portion of the diaper is required. Although disposal tape adhesives can produce acceptable adhesion to nonwoven diaper backsheets, they can cause problems such as blocking in rolled adhesive tape assemblies.

Conventional disposal tape is typically stored in rolls. Such conventional disposal tapes include a non-woven layer and an adhesive layer, the non-woven layer having a release layer on one surface of the non-woven fabric, a polymer layer on the opposite surface of the non-woven fabric, and an adhesive layer. The agent layer is disposed on the surface of the polymer layer facing away from the nonwoven fabric. This configuration of the waste tape is susceptible to blocking, or damage, to the waste tape when one layer of the waste tape is peeled from an adjacent layer. Although release layers are designed to protect the underlying structure, due to the absorbent nature of nonwovens, they cannot completely protect the underlying nonwoven layer. As a result, some of the adhesive layer tends to penetrate into the adjacent nonwoven material. For example, when peeling one tape layer from an adjacent tape layer, such as when unwinding a roll of tape or peeling off a sheet of tape, the peeling force increases as the adhesive layer peels off from the nonwoven fabric. As a result, some nonwoven fibers are undesirably pulled out of the nonwoven material. This damages the tape and prevents the roll of tape from being rewound neatly. In some cases, the tape may tear, and even if it does not break, it may not be possible to fully rewind the tape.

Securing fastening tape to disposable articles is typically done in a manner that provides a strong and durable attachment. Several techniques have been used to provide such attachment, including mechanical bonding processes and the use of high strength adhesives. However, it can be difficult to develop a fixation system that can achieve a certain degree of elongation and/or telescoping. Such limitations on the degree of elongation and/or stretch are particularly desirable for diapers designed for children. This is because if the fixation tape tends to stretch excessively, it may pose a risk of choking for infants. Some legal jurisdictions have regulations that limit the total amount of extension allowed for anchoring systems. For example, some international toy regulations limit the total amount of allowable extension to less than 200 mm. A means of reducing the amount of stretch in a securing tape assembly while still providing the typical strength of a securing tape assembly is desired. It is also desirable to have improved flexibility through thinner films compared to current systems. It is also desirable that the tape undergoes less plastic deformation when attached to a diaper compared to current unoriented polypropylene (PP) constructions, and that there is a concomitant improvement in aesthetics. Still further, a tape that does not exhibit blocking is desired. Accordingly, there is a need for a securing tape assembly having at least one of the above characteristics.

The embodiments of the invention described below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the detailed description below. Rather, the embodiments are chosen and described to enable others skilled in the art to appreciate and understand the principles and practice of the invention.

An improved fastening tape assembly (adhesive tape assembly, fastening tape assembly) is shown and described below. The securing tape assemblies described herein include (1) a carrier element, (2) an adhesive layer, and (3) a release layer, the carrier element comprising (a) a first (b) a polymer film layer having a first surface and a second surface, wherein the second surface of the polymer film layer is formed of the nonwoven fabric. the adhesive layer is disposed at least partially on the first side of the nonwoven layer, the release layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed on the first side of the polymeric film layer. is disposed at least partially on the surface of the In many embodiments, the carrier element comprises multiple layers of extruded laminates, adhesive bonds, or combinations thereof. In many embodiments, the nonwoven layer comprises a spunbond nonwoven, a carded nonwoven, a spunlace nonwoven, a meltblown nonwoven, or a combination thereof. Other types of nonwovens are also contemplated. In some embodiments, the polymer film layer includes a polyolefin. In many embodiments, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof. In many embodiments, the rubber-based adhesive is a styrene-butadiene-styrene block copolymer (SBS), a styrene-isoprene-styrene block copolymer (SIS), a styrene-butadiene (SB), or a combination thereof. including. In many embodiments, the adhesive layer is pressure sensitive. In many embodiments, the adhesive layer is patterned. In many embodiments, the adhesive layer is continuous. In many embodiments, the release layer comprises silicone, fluoropolymer, or a combination thereof. In many embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using heat. In many embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using UV or infrared curing.

The Z-fold fastening tape assembly described herein includes (1) a fastening element, (2) a coupling element, and (3) an extension element, the fastening element comprising: , a first surface for attachment to a disposable article or material, and a second surface oriented opposite the first surface; the extension element having a first surface for pasting and a second surface facing away from the first surface, the extension element being arranged between the fixing element and the coupling element; , at least partially connected to the fixation element and the coupling element, at least one of the fixation element, the coupling element, and the extension element including the fixation tape assembly described above.

The Z-fold fastening tape assembly described herein also includes: (1) a fastening element; (2) a coupling element; and (3) an extension element. The element has a first side for affixing to a disposable article or material and a second side facing away from the first side; the extension element has a first side for adhering to a substance and a second side facing away from the first side, the extension element being arranged between the fixation element and the coupling element arranged and at least partially connected to the fixation element and the coupling element, the fixation element comprising: (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer; The carrier element comprises (a) a nonwoven layer having a first side and a second side; and (b) a polymeric film layer having a first side and a second side, the polymeric film layer having a first side and a second side. a second surface of the adhesive layer is disposed at least partially on the first surface of the nonwoven layer, the adhesive layer is disposed at least partially on the second surface of the nonwoven layer, and the release layer is disposed at least partially on the second surface of the nonwoven layer; is disposed at least partially on the first side of the polymeric film layer.

Further, the Z-fold fastening tape assembly described herein includes (1) a fastening element, (2) a coupling element, and (3) an extension element, wherein the fastening element The element has a first side for affixing to a disposable article or material and a second side facing away from the first side; the extension element has a first side for adhering to a substance and a second side facing away from the first side, the extension element being arranged between the fixation element and the coupling element arranged and at least partially connected to the securing element and the coupling element, the coupling element comprising: (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer; The carrier element comprises (a) a nonwoven layer having a first side and a second side; and (b) a polymeric film layer having a first side and a second side, the polymeric film layer having a first side and a second side. a second surface of the adhesive layer is disposed at least partially on the first surface of the nonwoven layer, the adhesive layer is disposed at least partially on the second surface of the nonwoven layer, and the release layer is disposed at least partially on the second surface of the nonwoven layer; is disposed at least partially on the first side of the polymeric film layer.

Still further, the Z-fold fastening tape assembly described herein includes (1) a fastening element, (2) a coupling element, and (3) an extension element, wherein the The fixing element has a first side for affixing to a disposable article or material, and a second side facing away from the first side, and the binding element has a second side for attaching to a disposable article or material. the extension element has a first side for affixing to a disposable material and a second side facing away from the first side; and at least partially connected to the securing element and the coupling element, the extension element comprising (i) a carrier element, (ii) an adhesive layer, and (iii) a release layer; The carrier element comprises: (a) a nonwoven layer having a first side and a second side; and (b) a polymeric film layer having a first side and a second side; a second side of the layer is at least partially disposed on the first side of the nonwoven layer, the adhesive layer is at least partially disposed on the second side of the nonwoven layer, and the adhesive layer is at least partially disposed on the second side of the nonwoven layer; A layer is disposed at least partially on the first side of the polymer film layer.

Still further, the Z-fold fastening tape assembly described herein includes a fastening element, a coupling element, and an extension element, the fastening element being a fastening element that is attached to a disposable article or material. a first surface for application to a disposable article or a disposable material, and a second surface oriented opposite the first surface; and a second face facing away from the first face, the extension element being disposed between the fixing element and the coupling element, and the extension element having a second face facing away from the first face; the extension element has a first surface and a second surface, the extension element is substantially inextensible, and the extension element is at least partially connected to the fixation element and the connection element. At least one of the elements includes the fixation tape assembly described above.

Embodiments herein also describe a method of manufacturing a Z-fold securing tape assembly. Additionally, embodiments herein also describe articles that include Z-fold securing tape assemblies. In many embodiments, the article is a diaper.

Other features and advantages of the invention can be understood by those skilled in the art from the following detailed description. It is to be understood, however, that the following detailed description of various embodiments and specific examples is merely indicative of preferred and other embodiments of the invention, and is given by way of illustration and not limitation. Many changes and modifications within the scope of the invention may be made without departing from the spirit of the invention, and the invention is intended to include all such changes and modifications.

Advantages of embodiments of the invention may become apparent from the following detailed description of exemplary embodiments of the invention. This detailed description should be considered in conjunction with the accompanying drawings below. In the accompanying drawings, like elements are provided with like reference numerals.

1 is a schematic diagram illustrating a disposable article attached with a securing tab including a securing tape assembly in accordance with aspects described herein; FIG. 1 is a schematic diagram illustrating a disposable article including a securing tape assembly in accordance with aspects described herein; FIG. FIG. 2 is an exemplary diagram illustrating a partial cross-section of a securing tape assembly in accordance with aspects of the present disclosure. FIG. 2 is an exploded side view of a Z-fold securing tape assembly according to aspects of the present disclosure. FIG. 2 is an exploded side view of a Z-fold securing tape assembly according to aspects of the present disclosure. FIG. 2 is an exploded side view of a Z-fold securing tape assembly according to aspects of the present disclosure. FIG. 2 is an exploded side view of a Z-fold securing tape assembly according to aspects of the present disclosure. FIG. 2 is an exploded side view of a Z-fold securing tape assembly according to aspects of the present disclosure. FIG. 2 is a graph showing the ratio (%) of the unwinding force of a fixed tape assembly according to an embodiment of the present disclosure and a conventional tape to the initial value over a period of 6 weeks. FIG. FIG. 3 is a graph illustrating the unwinding force as a percentage of the initial value for a fixation tape assembly according to an embodiment of the present disclosure and two conventional tapes over a period of six weeks. FIG. FIG. 3 is a graph illustrating the unwinding force as a percentage of the initial value for a fixation tape assembly according to an embodiment of the present disclosure and two conventional tapes over a period of six weeks. FIG. 2 is a graph illustrating total elongation for (i) a Z-fold securing tape assembly with a non-extensible extension element in accordance with an embodiment of the present disclosure; and (ii) two conventional Z-fold tapes.

Aspects of the invention are disclosed in the following description of specific embodiments of the invention and the associated drawings. Alternate embodiments may be considered without departing from the spirit or scope of the invention. Also, in exemplary embodiments of the invention, well-known elements may not be described in detail or may be omitted without obscuring details relevant to the invention. Additionally, to facilitate understanding of the specification, some terms used herein are discussed below.

The term "exemplary" as used herein means serving as an example. The embodiments described herein are illustrative rather than restrictive. It is to be understood that any embodiment described herein is not necessarily to be construed as preferred or advantageous over other embodiments. Furthermore, the terms "embodiments of the invention," "embodiments," or "the invention" refer to all embodiments of the invention as including the features, advantages, or modes of operation discussed herein. do not need.

The fixation tape assembly includes a carrier element. The carrier element includes a nonwoven layer, a polymeric film layer, and an adhesive layer. The nonwoven fabric layer has a first surface and a second surface facing opposite to the first surface. The polymer film layer has a first side and a second side facing away from the first side. In some embodiments, the second side of the polymeric film layer is at least partially disposed on the first side of the nonwoven layer. In some embodiments, the polymer film layer is completely or substantially completely disposed on the first side of the nonwoven layer. In some embodiments, the adhesive layer is at least partially disposed on the second side of the nonwoven layer. In some embodiments, the adhesive layer is completely or substantially completely disposed on the second side of the nonwoven layer. In some embodiments, a release layer is disposed at least partially on the first side of the polymeric film layer. In some embodiments, the release layer is disposed completely or substantially completely on the first side of the polymeric film layer.

As previously mentioned, conventional tapes suffer from the drawback of blocking due to the transfer of adhesive from one tape layer to the nonwoven material on an adjacent tape layer. As used herein, "blocking" refers to the inability or impairment of the ability of one layer of tape to be successfully peeled from another layer of tape due to increased bond strength between the layers. In the absence of blocking, one layer of tape can be easily removed from the adjacent tape layer without requiring significant force. Blocking occurs when the bonding forces between layers are high, in which case a large force is required to separate the layers. If the bond between the layers is strong, unwinding of the tape roll may be delayed. In some situations, the effective tension may be concentrated at one or more locations on the tape or at the edges of the tape, which may cause damage or breakage of the tape at or near that location. It is anticipated that blocking may be overcome by placing a nonwoven layer between the polymeric film layer and the adhesive layer and placing a release layer on the opposite side of the polymeric film layer from the side on which the nonwoven is present. Found outside. As a result, the first layer of the securing tape assembly, the adhesive layer, is separated from the adjacent nonwoven layer, the second layer of the securing tape assembly, by both the release layer and the polymeric film layer. This configuration does not allow adhesive to penetrate the nonwoven layer of the securing tape assembly. Therefore, when the adhesive layer (first layer) of the fixing tape assembly is removed, the nonwoven fibers of the nonwoven fabric layer, which is the lower layer (second layer) of the fixing tape assembly, are not pulled out by the adhesive of the adhesive layer. The nonwoven layer remains undamaged. Because the occurrence of blocking is thus reduced or prevented, each layer of the fixation tape assembly can be smoothly peeled from adjacent layers.

The nonwoven layer is comprised of any suitable material. In many embodiments, the nonwoven layer comprises a spunbond nonwoven, a carded nonwoven, a spunlace nonwoven, a meltblown nonwoven, or a combination thereof. The nonwoven layer may include other nonwovens not described herein. In many embodiments, the nonwoven layer has a thickness within the range of 10 grams/square meter to 70 grams/square meter. In some embodiments, the nonwoven layer has a thickness within the range of 20 grams/square meter or more and 60 grams/square meter or less. In some embodiments, the nonwoven layer has a thickness in the range of 30 grams/square meter or more and 50 grams/square meter or less.

The polymeric film layer consists of any suitable material. In some embodiments, the polymer film layer includes a polyolefin. In some embodiments, the polymer film layer comprises polypropylene, biaxially oriented polypropylene, polyethylene, or combinations thereof. In many embodiments, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof. In many embodiments, the polymeric film layer comprises polypropylene, biaxially oriented polypropylene, polyethylene, or combinations thereof. In many embodiments, the polymeric film layer has a thickness within the range of 5 grams/square meter or more and 50 grams/square meter or less. In some embodiments, the polymeric film layer has a thickness within the range of 10 grams/square meter or more and 40 grams/square meter or less. In other embodiments, the polymeric film layer has a thickness within the range of 15 grams/square meter or more and 35 grams/square meter or less.

In many embodiments, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof. In some embodiments, the rubber-based adhesive is styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene (SB), or combinations thereof. including. In many embodiments, the adhesive layer is pressure sensitive. In some embodiments, the adhesive layer is patterned. As used herein, "patterned" means that the adhesive is disposed in a discontinuous manner, ie, in a manner that forms a pattern. The pattern may be uniform, non-uniform, symmetrical, or asymmetrical. In some embodiments, the adhesive layer is continuous or substantially continuous.

The release layer consists of any suitable material. In some embodiments, the release layer comprises silicone, fluoropolymer, or a combination thereof. In some embodiments, the release layer comprises silicone. A silicone release layer may be used, although other release layers are also contemplated. In some embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using heat. In some embodiments, the release layer is completely or substantially completely bonded to the first side of the polymeric film layer using heat. In some embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using ultraviolet or infrared curing. In some embodiments, the release layer is completely or substantially completely bonded to the first side of the polymeric film layer using ultraviolet or infrared curing.

The force required to peel one layer of tape from another is influenced by the type of adhesive and/or the amount of silicone in the tape. It has been unexpectedly discovered that the amount of silicone required for fixation tape assemblies according to the present invention is significantly less than that required for conventional tapes. In some embodiments, the weight of the release layer (release coat) in the fixed tape assembly is 3 to 6 times less than the weight of the silicone layer (silicone coat) of conventional nonwoven-based tapes. In some embodiments, the release layer (release coat) weighs less than 6 grams/square meter. In some embodiments, the release layer (release coat) weighs less than 5 grams/square meter, less than 4 grams/square meter, less than 3 grams/square meter, or less than 2 grams/square meter.

In many embodiments, the carrier element may be manufactured using any suitable method. In some embodiments, the carrier element includes multiple layers of extruded laminates, adhesive bonds, or combinations thereof.

The securing tape assembly may be in any suitable form. In some embodiments, the securing tape assembly is in a roll. In some embodiments, the securing tape assembly is sheet-like.

The securing tape assembly may be used in any closure or disposal tape construction for diapers or other articles. In some embodiments, the fixation tape assembly of the present invention is included in at least a portion of a non-folded (non-folded) fixation tape or a bi-fold fixation tape assembly. In some embodiments, the unfolded securing tape or the bifold securing tape assembly may further include at least one mechanical closure mechanism, such as a hook.

In some embodiments, the fixation tape assembly of the present disclosure is included in at least a portion of a Z-fold (tri-fold) fixation tape assembly. The Z-fold fastening tape assembly includes a fastening element, a joining element, and an extension element. The extension element is arranged between the fixation element and the coupling element. At least one of the fixation element, the coupling element, and the extension element includes the fixation tape assembly described above. In some embodiments, each of the fixation element, coupling element, and extension element includes a fixation tape assembly as described above. In some embodiments, the fixation element includes a fixation tape assembly as described above.

In some embodiments, at least a portion of the securing elements of the Z-fold securing tape assembly are configured for application to a disposable article or material. In some embodiments, the securing element defines a first side for attachment to a disposable article or material and a second side oriented in an opposite direction from the first side. . In some embodiments, at least a portion of the first surface of the securing element is configured for attachment to a disposable article or material. In some embodiments, all or substantially all of the first side of the securing element is configured for attachment to a disposable article or material.

In some embodiments, at least a portion of the binding elements of the securing tape assembly are configured for attachment to a disposable article or material. In some embodiments, the coupling element defines a first surface for attachment to a disposable article or material and a second surface oriented in an opposite direction from the first surface. . In some embodiments, at least a portion of the first side of the coupling element is configured for attachment to a disposable article or material. In some embodiments, all or substantially all of the first side of the coupling element is configured for attachment to a disposable article or material.

The extension element is generally arranged between the fixation element and the coupling element. "Generally located between" as used herein means that at least a portion of the extension element is located between the fixation element and the coupling element. In some embodiments, at least a portion of the extension element is at least partially connected to (attached to) the fixation element. In some embodiments, at least a portion of the extension element is at least partially connected to (attached to) the coupling element. In some embodiments, the extension element is directly connected to (attached to) at least one of the fixation element and the coupling element. For example, at least a portion of the extension element may be affixed to at least a portion of at least one of the fixing element and the coupling element. In some embodiments, the extension element is indirectly connected to (attached to) at least one of the fixation element and the coupling element. For example, at least part of the extension element may be affixed to another structure (element) that is affixed to the fixing element or the coupling element. The further structure may, for example, form a U-shaped connection between the extension element and the fixing element or the coupling element.

In some embodiments, the securing element of the Z-fold securing tape assembly includes a carrier element as described above, an adhesive layer, and a release layer. The carrier element includes a nonwoven layer having a first side and a second side and a polymeric film layer having a first side and a second side. At least a portion of the second side of the polymeric film layer is at least partially disposed on the first side of the nonwoven layer. At least a portion of the adhesive layer is at least partially disposed on the second side of the nonwoven layer. At least a portion of the release layer is at least partially disposed on the first side of the polymeric film layer. In some embodiments, the adhesive layer of the fixation element is provided in an adhesive area on the first side of the fixation element. The fixation element is at least partially joined (joined) to the extension element in the above-mentioned adhesive area. In some embodiments, the first side of the fixation element is at least partially covered by an adhesive layer, thereby coupling (bonding) the fixation element to the extension element. In some embodiments, the adhesive layer on the first side of the fixation element is patterned. In some embodiments, the adhesive layer on the first side of the fixation element is continuous. In some embodiments, the distal end of the fixation element is folded back, thereby forming a folded edge. The fixing element is connected (attached) to the extension element at the folded edge. In some embodiments, a film-like strip is attached to the distal end of the fixation element to form a U-shaped joint connecting the fixation element to the extension element. The film-like strip (film piece) consists of any suitable material with high tear resistance (tear strength), such as, for example, an unoriented polypropylene film layer or a PET film layer. In some embodiments, the adhesive layer is a pressure sensitive adhesive. In some embodiments, the securing element further includes at least one mechanical closure mechanism, such as a hook. At least one mechanical closure mechanism may be used to attach the securing tape assembly to the disposable article or material. At least one mechanical closure mechanism may be used in combination with an adhesive.

In some embodiments, the bonding element of the Z-fold securing tape assembly includes a carrier element as described above, an adhesive layer, and a release layer. The carrier element includes a nonwoven layer having a first side and a second side and a polymeric film layer having a first side and a second side. At least a portion of the second side of the polymeric film layer is at least partially disposed on the first side of the nonwoven layer. At least a portion of the adhesive layer is at least partially disposed on the second side of the nonwoven layer. At least a portion of the release layer is at least partially disposed on the first side of the polymeric film layer. In some embodiments, the adhesive layer of the bonding element is provided in an adhesive area on the first side of the bonding element. The coupling element may be at least partially coupled (joined) to the disposable article or material at the above-mentioned adhesive region. In some embodiments, the adhesive layer on the first side of the bonding element is patterned. In some embodiments, the adhesive layer on the first side of the bonding element is continuous. In some embodiments, the adhesive layer is a pressure sensitive adhesive. In some embodiments, the distal end of the coupling element is folded back, thereby forming a folded edge. The coupling element is connected (attached) to the extension element at the edge (folded edge) and forms a Y-shaped coupling. In some embodiments, the first side of the coupling element is at least partially covered by an adhesive layer, thereby coupling (bonding) the coupling element to the extension element. In some embodiments, a film-like strip is attached to the distal end of the coupling element to form a U-shaped connection connecting the coupling element to the extension element. The filmic strip (piece of film) is comprised of any suitable material, such as a biaxially oriented polypropylene (BOPP) film layer. In some embodiments, there is at least one perforation in the binding element. In some embodiments, there are multiple perforations in the binding element. In some embodiments, at least one perforation is located in the Y-shaped joint joining the coupling element to the extension element. In some embodiments, the coupling element is connected to (attached to) the extension element by two spaced apart Y-shaped couplings, one of the Y-shaped couplings comprising: It includes at least one perforation. Due to the perforation mentioned above, the coupling element remains undamaged before use of the fixation tape assembly and can be broken at the location of the perforation during deployment of the fixation tape assembly. For example, perforations in the Y-shaped coupling may reduce the risk that the coupling element and extension element become separated from each other prior to deployment of the fixation tape assembly.

In some embodiments, the extension element of the Z-fold securing tape assembly includes a carrier element as described above, an adhesive layer, and a release layer. The carrier element includes a nonwoven layer having a first side and a second side and a polymeric film layer having a first side and a second side. At least a portion of the second side of the polymeric film layer is at least partially disposed on the first side of the nonwoven layer. At least a portion of the adhesive layer is at least partially disposed on the second side of the nonwoven layer. At least a portion of the release layer is at least partially disposed on the first side of the polymeric film layer. In some embodiments, the adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element. The extension element is at least partially joined (joined) to the coupling element in the above-mentioned adhesive region. In some embodiments, the first side of the extension element is at least partially covered by an adhesive layer, thereby coupling the extension element to the coupling element. In some embodiments, the adhesive layer on the first side of the extension element is patterned. In some embodiments, the adhesive layer on the first side of the extension element is continuous. In some embodiments, the second side of the extension element is at least partially covered by an adhesive layer, thereby coupling the extension element to the fixation element. In some embodiments, the adhesive layer on the second side of the extension element is patterned. In some embodiments, the adhesive layer on the second side of the extension element is continuous. In some embodiments, the distal end of the extension element is folded back, thereby forming a folded edge. The fastening element is connected (attached) to the extension element at the edge (folded edge) and forms a Y-shaped connection. In some embodiments, an adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element, thereby at least partially bonding (bonding) the coupling element to the extension element. In some embodiments, the first end (distal end) of the extension element is folded back, thereby forming an edge (folded edge) at which the fixation element is attached to the extension element. is connected to (attached to) and forms a first Y-shaped joint. The second end (distal end) of the extension element is also folded back, thereby forming an edge (folded edge) at which the fixation element is connected (attached) to the extension element. ), forming a second Y-shaped joint. In some embodiments, the adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element, thereby at least partially coupling (bonding) the extension element to the fixation element and the coupling element. )do. In some embodiments, a film-like strip is attached to the distal end of the extension element to form a U-shaped joint connecting the extension element to the fixation element or coupling element. ing. The filmic strip (piece of film) is made of any suitable material, such as, for example, a biaxially oriented polypropylene (BOPP) film layer. In some embodiments, the adhesive layer is a pressure sensitive adhesive.

In some embodiments, a Z-fold securing tape assembly includes (1) a securing element, (2) a coupling element, and (3) an extension element, the securing element being affixed to a disposable article or material. the coupling element has a first surface for application to a disposable article or material, and a second surface oriented opposite the first surface; and a second surface facing away from the first surface, the extension element being disposed between the fixation element and the coupling element, the extension element having a second surface facing away from the first surface; and at least one of the fixation element, the coupling element, and the extension element includes the fixation tape assembly described above.

In some embodiments, a Z-fold securing tape assembly includes (1) a securing element, (2) a coupling element, and (3) an extension element, the securing element being affixed to a disposable article or material. the coupling element has a first surface for application to a disposable article or material, and a second surface oriented opposite the first surface; and a second surface facing away from the first surface, the extension element being disposed between the fixation element and the coupling element, the extension element having a second surface facing away from the first surface; the securing element comprises (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element being at least partially connected to (a) a first (b) a polymer film layer having a first surface and a second surface, the second surface of the polymer film layer being the adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. disposed at least partially on the surface.

In many embodiments, the carrier element of the Z-fold securing tape assembly may be manufactured using several different methods. In some embodiments, the carrier element includes multiple layers of extruded laminates, adhesive bonds, or combinations thereof.

The nonwoven layer of the Z-fold securing tape assembly is comprised of any suitable material. In many embodiments, the nonwoven layer comprises a spunbond nonwoven, a carded nonwoven, a spunlace nonwoven, a meltblown nonwoven, or a combination thereof. The nonwoven layer may also include other nonwovens not described herein. In many embodiments, the nonwoven layer has a thickness within the range of 10 grams/square meter to 70 grams/square meter. In some embodiments, the nonwoven layer has a thickness within the range of 20 grams/square meter or more and 60 grams/square meter or less. In some embodiments, the nonwoven layer has a thickness within the range of 30 grams/square meter or more and 50 grams/square meter or less.

The polymeric film layer of the Z-fold securing tape assembly is comprised of any suitable material. In many embodiments, the polymeric film layer comprises polypropylene, biaxially oriented polypropylene, polyethylene, or combinations thereof. In many embodiments, the polymeric film layer has a thickness within the range of 5 grams/square meter or more and 50 grams/square meter or less. In some embodiments, the polymeric film layer has a thickness within the range of 10 grams/square meter or more and 40 grams/square meter or less. In many embodiments, the polymeric film layer has a thickness within the range of 15 grams/square meter or more and 35 grams/square meter or less.

The adhesive layer of the carrier element in the Z-fold securing tape assembly is comprised of any suitable material. In many embodiments, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof. In some embodiments, the rubber-based adhesive is comprised of a styrene-butadiene-styrene block copolymer (SBS), a styrene-isoprene-styrene block copolymer (SIS), or a combination thereof. In many embodiments, the adhesive layer is pressure sensitive. In some embodiments, the adhesive layer is patterned as described above. In some embodiments, the adhesive layer is continuous.

The release layer of the carrier element in the Z-fold securing tape assembly is comprised of any suitable material. In some embodiments, the release layer comprises silicone. The release layer may be bonded (bonded) to the polymer film layer by any suitable method. In some embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using heat. In some embodiments, the release layer is at least partially bonded to the first side of the polymeric film layer using ultraviolet or infrared curing.

In some embodiments, the Z-fold securing tape assembly includes a finger lift at least partially attached to the securing element. In some embodiments, at least a portion of the surface of at least one of the lifting tabs is adhesive-free. In some embodiments, at least a portion of both sides of the lift tab are adhesive-free. In some embodiments, the lifting tab is substantially adhesive-free. The lift tab provides an extension tab that can be grasped by the user, allowing the user to easily open the Z-fold securing tape assembly.

In many embodiments of the Z-fold securing tape assembly, the securing tape assembly is in the form of a roll. In many embodiments of the Z-fold securing tape assembly, the securing tape assembly is sheet-like.

In some embodiments, a Z-fold securing tape assembly includes (1) a securing element, (2) a coupling element, and (3) an extension element, the securing element being affixed to a disposable article or material. the coupling element has a first surface for application to a disposable article or material, and a second surface oriented opposite the first surface; and a second surface facing away from the first surface, the extension element being disposed between the fixation element and the coupling element, the extension element having a second surface facing away from the first surface; the coupling element comprises (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element being at least partially connected to (a) a first (b) a polymer film layer having a first surface and a second surface, the second surface of the polymer film layer being the adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. disposed at least partially on the surface.

In some embodiments, a Z-fold securing tape assembly includes (1) a securing element, (2) a coupling element, and (3) an extension element, the securing element being affixed to a disposable article or material. the coupling element has a first surface for application to a disposable article or material, and a second surface oriented opposite the first surface; and a second surface facing away from the first surface, the extension element being disposed between the fixation element and the coupling element, the extension element having a second surface facing away from the first surface; the extension element comprises (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element being at least partially connected to (a) a first (b) a polymer film layer having a first surface and a second surface, the second surface of the polymer film layer being the adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. disposed at least partially on the surface.

In many embodiments, at least one of the anchoring elements, extension elements, or coupling elements is non-stretchable or substantially non-stretchable. As used herein, "inextensible" means that there is no plastic deformation or material flow after the yield point (end of elastic elongation), which causes the film to break after the yield point. When attached to a disposable article or material, the coupling element may be partially, completely, or substantially completely attached to the disposable article or material. When the binding element is completely or substantially completely attached to the disposable article or material, the binding element has little effect on the elongation of the fixation tape assembly. In many embodiments, the extension element is non-stretchable or substantially non-stretchable. In many embodiments, the fixation element and the extension element are non-stretchable or substantially non-stretchable. If both the fixation element and the extension element are non-extensible, the total amount of extension of the fixation tape assembly upon exerting an extension force is the total extension if only the extension element is non-extensible or substantially non-extensible. even smaller than the amount. As used herein, "total elongation" refers to the sum of the original length and the length added by the application of elongation force.

In some embodiments, the extension element of the Z-fold securing tape assembly is non-extensible or substantially non-extensible, and the securing element includes the securing tape assembly described above. In some embodiments, a Z-fold securing tape assembly includes a securing element, a coupling element, and an extension element, the securing element having a first surface for application to a disposable article or material; a second face oriented opposite the first face, the coupling element having a first face for application to a disposable article or material; an oppositely directed second surface, the extension element being disposed between the fixation element and the coupling element and at least partially connected to the fixation element and the coupling element; , the extension element is substantially non-extensible, and at least one of the fixation element and the coupling element includes the fixation tape assembly described above.

In many embodiments, the Z-fold securing tape assembly reduces its original length by no more than 1%, no more than 2.5%, no more than 5%, no more than 10%, no more than 20%, no more than 25%, or no more than 35% of its original length. It may be extended by the following amount: In many embodiments, the Z-fold securing tape assembly may be stretched to a total stretch of 200 mm or less. In some embodiments, the Z-fold securing tape assembly has a total elongation of 200 mm or less after the Z-fold securing tape assembly is stretched at an elongation rate of 1500 mm/min until tearing or breaking.

The non-stretchable or substantially non-stretchable extension element is comprised of any suitable material, such as, for example, an oriented film. In some embodiments, the extension element comprises polyester. In some embodiments, the extension element comprises polyethylene terephthalate (PET), oriented polypropylene (OPP), biaxially oriented polypropylene (BOPP), blown film, or any combination thereof. In many embodiments, the non-stretchable or substantially non-stretchable extension element is a reinforced film or a laminate film. In many embodiments, the non-stretchable or substantially non-stretchable extension element has a tear resistance (tear strength) of at least 200 millinewtons as measured by the Elmendorf Tear Strength Test. In many embodiments, the non-stretchable or substantially non-stretchable extension element has a tear resistance (tear strength) of at least 400 millinewtons, or at least 500 millinewtons, as measured by the Elmendorf tear strength test. . In many embodiments, at least one of the extension element and the fixation element is inelastic or substantially inelastic. In many embodiments, the extension element is inelastic or substantially inelastic. The inextensibility of at least one of the securing element and the extension element limits the deployed length of the Z-fold securing tape assembly. This is advantageous in that it provides improved safety for the use of the fastening tape assembly, or any article to which it is provided. This is particularly advantageous when the tape is used on articles designed for children. In many embodiments, the securing tape assembly complies with the International Organization for Standardization's ISO 8124 Toy Safety Standard.

In many embodiments, the non-extensible or substantially non-extensible extension element is at least partially covered by an adhesive layer on a first side of the extension element and a layer of adhesive on a second side of the extension element. At least partially covered by a release layer. In many embodiments, the non-extensible or substantially non-extensible fixation element is at least partially covered by an adhesive layer on a first side of the fixation element and a second side of the fixation element. At least partially covered by an overlying release layer. In many embodiments, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof. In some embodiments, the rubber-based adhesive comprises a styrene-butadiene-styrene block copolymer (SBS), a styrene-isoprene-styrene block copolymer (SIS), or a combination thereof. In many embodiments, the adhesive layer is pressure sensitive. In some embodiments, the adhesive layer is patterned. In some embodiments, the adhesive layer is continuous. In some embodiments, the adhesive layer is a pressure sensitive adhesive.

The above Z-fold securing tape assembly may be manufactured by any suitable method. The Z-fold securing tape assembly may be included in a disposable article. In many embodiments, the disposable article is a diaper.

FIG. 1A shows a disposable article 1 according to one embodiment of the invention. Referring to FIG. 1A, the disposable article 1 has a front part 4, a rear part 5, and a crotch part 6 between the front part 4 and the rear part 5. . A chassis 11 is provided over the front part 4, the rear part 5, and the crotch part 6. The chassis 11 may include a topsheet 2, a backsheet 3, and an absorbent core (not shown) disposed between the topsheet 2 and the backsheet 3. Topsheet 2 may be liquid permeable. The backsheet 3 may be liquid impermeable and is associated with the topsheet 2.

In many embodiments, the backsheet 3 may be suitably formed from a suitable film-like material, such as a laminate film comprising a polymeric film and a non-woven fabric. In some embodiments, backsheet 3 comprises a nonwoven material. The nonwoven material may, for example, have a weight of about 7 grams/square meter to about 25 grams/square meter, about 10 grams/square meter to about 20 grams/square meter, or about 12 grams/square meter to about 18 grams/square meter. / square meter or less. In some embodiments, the nonwoven material described above may suitably include a spunbond material. In some embodiments, the nonwoven material is a polypropylene nonwoven. In some embodiments, the polymer film described above is a polyethylene film or a polypropylene film. In some embodiments, the nonwoven material described above may comprise a collection of fibers or filaments, preferably intertwined or otherwise arranged, wherein the fibers or filaments are bonded to a polymeric web or backing ( For example, it can be thermally or adhesively bonded to a polyethylene and/or polypropylene backing. Of course, alternatively, other known nonwoven materials may be used as well, and/or other known methods for producing nonwoven materials may be employed.

The disposable article 1 has an inner rear panel section (not shown) and an outer rear panel section 7 extending from the first side surface section 15 to the second side surface section 16 of the disposable article 1 at the rear section 5, and the disposable article at the front section 4. The vehicle may further include an inner front panel section 8 and an outer front panel section 9 extending from the first side surface section 15 to the second side surface section 16, respectively. At the outermost edge line 17 of each of the first side 15 and second side 16 of the disposable article 1, an inner rear panel section (not shown) and an outer rear panel section 7, an inner front panel section 8 and an outer front panel Part 9 matches. Portions of the edges 14 of the inner rear panel section (not shown) and the outer rear panel section 7 and the inner front panel section 8 and the outer front panel section 9 define (configure) each of the two leg openings 12. )are doing. Part of the edge 18 of the inner rear panel section (not shown) and the outer rear panel section 7 and the inner front panel section 8 and the outer front panel section 9 define (configure) the waist opening 13. . Disposable article 1 includes a securing tape assembly 10 (see FIG. 1B). On the outer rear panel portion 7 of the disposable article 1, the securing element 20 (reference numeral 201 in FIGS. 3A-3D) of the securing tape assembly 10 can be seen. It will be appreciated that in some embodiments the securing element 20 may be found on the outer front panel portion 9 of the disposable article 1. Also shown in FIG. 1B are an extension element 30 (reference numeral 202 in FIGS. 3A-3D) and a coupling element 40 (reference numeral 203 in FIGS. 3A-3D). The securing tape assembly 10 is attached to and secures the rolled disposable article 1 in the extended position. In some embodiments, the securing tape assembly 10 may include a finger lift 50. Although a fixation tape assembly 10 is described herein with reference to, for example, FIGS. 2 and 3A-3D, the present invention is not limited to the fixation tape assembly 10, but may be applied to other fixation tape assemblies. It will be understood that it may also include

FIG. 2 shows one embodiment of a fixation tape assembly 100 (reference numeral 10 in FIG. 1B). Fixation tape assembly 100 includes a carrier element 150, an adhesive layer 140, and a release layer 110. Carrier element 150 comprises a nonwoven layer 130 having a first side 131 and a second side 132 and a polymeric film layer 120 having a first side 121 and a second side 122. Adhesive layer 140 has a first surface 141 and a second surface 142. Release layer 110 has a first surface 111 and a second surface 112. The second side 122 of the polymeric film layer 120 is at least partially disposed on the first side 131 of the nonwoven layer 130. Adhesive layer 140 is at least partially disposed on second side 132 of nonwoven layer 130. The second side 112 of the release layer 110 is at least partially disposed on the first side 121 of the polymeric film layer 120.

3A-3E illustrate embodiments of a Z-fold securing tape assembly 200. FIG. Z-fold fixation tape assembly 200 includes a fixation element 201 , a coupling element 203 , and a non-stretchable extension element 202 . The fixation element 201 defines a first side 204 for application to a disposable article or material and a second side 205 oriented in a direction opposite to the first side 204 . In FIG. 3A, the securing element 201 has an adhesive layer 219 located on the first side 204 of the securing element 201, a release layer 220 located on the second side 205 of the securing element 201, and adjacent the adhesive layer 219. A nonwoven fabric layer 221B and a polymer film layer 221A adjacent to the nonwoven fabric layer 221B are provided. Nonwoven fabric layer 221B is interposed between adhesive layer 219 and polymer film layer 221A. 3B-3E, any one of fixation element 201, extension element 202, or coupling element 203 may include a carrier element according to aspects of the present disclosure. In this case, at least one carrier layer (carrier element) 221, 224, 227 comprises a polymer film layer and a nonwoven layer (not shown separately) arranged adjacent to each other (in the figure, the fastening element The carrier layer 221 of 201, the carrier layer 227 of extension element 202, and the carrier layer 224 of coupling element 203 are each shown collectively). The polymer film layers (not shown separately) in the carrier layers 221, 224, 227 are in contact with the corresponding nonwoven fabric layers (not shown separately) in the same carrier layer and the corresponding release layers 220, 223, 226. is sandwiched between. The nonwoven layers (not shown separately) in the carrier layers 221, 224, 227 are combined with the corresponding adhesive layers 219, 222, 225 and the corresponding polymer films (not shown separately) in the carrier layers 221, 224, 227. sandwiched between layers. In some embodiments, fixation element 201 of FIGS. 3B-3E includes a carrier element according to aspects of the present disclosure. The fixing element 201 includes an adhesive layer 219 located on the first side 204 of the fixing element 201, a release layer 220 located on the second side 205 of the fixing element 201, and a nonwoven fabric layer adjacent to the adhesive layer 219 ( 221B in FIG. 3A) and a polymeric film layer (see 221A in FIG. 3A) adjacent to the nonwoven layer. A nonwoven layer (see reference numeral 221B in FIG. 3A) is interposed between the adhesive layer 219 and the polymer film layer (see reference numeral 221A in FIG. 3A). In FIGS. 3A-3C, adhesive layer 219 is continuous. In FIGS. 3D and 3E, adhesive layer 219 is patterned. Coupling element 203 defines a first surface 206 for attachment to a disposable article or material and a second surface 207 oriented in an opposite direction to first surface 206 . An adhesive layer 222 is located on the first side 206 of the coupling element 203 and a release layer 223 is located on the second side 207 of the coupling element 203. A carrier layer (carrier element) 224 is interposed between the adhesive layer 222 and the release layer 223. Extension element 202 has a first side 208 and a second side 209 and is generally positioned between fixation element 201 and coupling element 203. An adhesive layer 225 is located on the first side 208 of the extension element 202 and a release layer 226 is located on the second side 209 of the extension element 202. A carrier layer (carrier element) 227 is interposed between the adhesive layer 225 and the release layer 226. In Figures 3A and 3B, adhesive layer 225 is continuous. In FIGS. 3C-3E, adhesive layer 225 is patterned. Fixation element 201 is attached to extension element 202. A first end (distal end) 210 of extension element 202 is folded back to form a folded edge 214 . The folded edge 214 of the extension element 202 is attached to the first side 204 of the fixation element 201 to form a Y-shaped joint 211 . In this way, a portion of one end of extension element 202 is at least partially attached to fixation element 201 . Extension element 202 is also attached to coupling element 203. 3A and 3C-3E, a first end (distal end) 216 of coupling element 203 is folded back to form a folded edge 217. In FIGS. The folded edge 217 of the coupling element 203 is attached to the first side 208 of the extension element 202 to form a Y-shaped coupling 218 . In FIG. 3B, a film-like strip 215 is attached to a first end (distal end) 216 of coupling element 203. In FIG. This forms a U-shaped joint that attaches the first end 216 of the coupling element 203 to a portion of the first face 208 of the extension element 202 . Thus, in each of FIGS. 3A-3E, a portion of one end of extension element 202 is at least partially attached to coupling element 203. In FIGS. 3A-3D, the Z-fold securing tape assembly 200 further includes a finger lift 212 attached to the first side 204 of the securing element 201. In FIGS. Lifting tab 212 is located at a first end (distal end) 213 of fixation element 201 . It should be noted that although FIGS. 3A to 3D show the securing element 201, extension element 202, and coupling element 203 in exploded form for the sole purpose of illustrating the different components of the securing tape assembly 200, these Note that the components of are attached (connected) to each other as described above.

In the present invention, the following embodiments are assumed. In the following embodiments, all features and combinations of embodiments are possible.

[Embodiment 1]
(1) a carrier element; (2) an adhesive layer; and (3) a release layer, the carrier element comprising: (a) a nonwoven layer having a first side and a second side; ) a polymeric film layer having a first side and a second side, the second side of the polymeric film layer being at least partially disposed on the first side of the nonwoven layer; An adhesive layer is disposed at least partially on a second side of the nonwoven layer, and the release layer is at least partially disposed on the first side of the polymeric film layer. .

[Embodiment 2]
In embodiment 1, the carrier element comprises multiple layers of extruded laminates, adhesive bonds, or combinations thereof.

[Embodiment 3]
In any of embodiments 1-2, the nonwoven layer comprises a spunbond nonwoven, a carded nonwoven, a spunlace nonwoven, a meltblown nonwoven, or a combination thereof.

[Embodiment 4]
In any of embodiments 1-3, the polymer film layer includes polyolefin.

[Embodiment 5]
In any of embodiments 1-4, the adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof.

[Embodiment 6]
In Embodiment 5, the rubber adhesive comprises styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene (SB), or a combination thereof. include.

[Embodiment 7]
In any of embodiments 1-6, the adhesive layer is pressure sensitive.

[Embodiment 8]
In any of embodiments 1-7, the adhesive layer is patterned.

[Embodiment 9]
In any of embodiments 1-7, the adhesive layer is continuous.

[Embodiment 10]
In any of embodiments 1-9, the release layer comprises silicone, fluoropolymer, or a combination thereof.

[Embodiment 11]
In any of embodiments 1-9, the release layer is a silicone release layer.

[Embodiment 12]
In any of embodiments 1-11, the release layer is at least partially bonded to the first side of the polymeric film layer using heat.

[Embodiment 13]
In any of embodiments 1-11, the release layer is at least partially bonded to the first side of the polymeric film layer using UV or infrared curing.

[Embodiment 14]
(1) a securing element; (2) a coupling element; and (3) an extension element, the securing element having a first surface for attachment to a disposable article or material; has an oppositely oriented second side, the coupling element having a first side for application to a disposable article or material, and a first side oriented oppositely from the first side. the extension element is disposed between the fixation element and the coupling element and is at least partially connected to the fixation element and the coupling element; A Z-fold securing tape assembly, wherein the coupling element and at least one of said extension elements include the securing tape assembly of embodiment 1.

[Embodiment 15]
(1) a securing element; (2) a coupling element; and (3) an extension element, the securing element having a first surface for attachment to a disposable article or material; has an oppositely oriented second side, the coupling element having a first side for application to a disposable article or material, and a first side oriented oppositely from the first side. the extension element is disposed between the fixation element and the coupling element and is at least partially connected to the fixation element and the coupling element; the fixation element has a second surface; (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element comprising: (a) a nonwoven layer having a first side and a second side; ) a polymeric film layer having a first side and a second side, the second side of the polymeric film layer being at least partially disposed on the first side of the nonwoven layer; The adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. Fixed tape assembly.

[Embodiment 16]
In embodiment 15, the first side of the fixation element is at least partially covered by an adhesive layer to join the fixation element to the extension element.

[Embodiment 17]
In any of embodiments 14-15, the adhesive layer on the first side of the fixation element is patterned.

[Embodiment 18]
In any of embodiments 14-15, the adhesive layer on the first side of the fixation element is continuous.

[Embodiment 19]
In any of embodiments 14-18, the adhesive layer is a pressure sensitive adhesive.

[Embodiment 20]
In any of embodiments 14 to 19, the fixation element further comprises a hook.

[Embodiment 21]
In any of embodiments 14 to 19, the adhesive layer of the fixation element is provided in an adhesive area on the first side of the fixation element to at least partially couple the fixation element to the extension element. It is being

[Embodiment 22]
In any of embodiments 14 to 21, further comprising a lifting tab at least partially attached to the securing element.

[Embodiment 23]
In any of embodiments 14 to 22, further comprising at least one perforation in the coupling element.

[Embodiment 24]
In any of embodiments 14-23, the securing tape assembly is in a roll.

[Embodiment 25]
(1) a securing element; (2) a coupling element; and (3) an extension element, the securing element having a first surface for attachment to a disposable article or material; has an oppositely oriented second side, the coupling element having a first side for application to a disposable article or material, and a first side oriented oppositely from the first side. the extension element is disposed between the fixation element and the coupling element and is at least partially connected to the fixation element and the coupling element; the coupling element has a second surface; (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element comprising: (a) a nonwoven layer having a first side and a second side; ) a polymeric film layer having a first side and a second side, the second side of the polymeric film layer being at least partially disposed on the first side of the nonwoven layer; The adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. Fixed tape assembly.

[Embodiment 26]
In embodiment 25, a first side of the coupling element is at least partially covered by the adhesive layer to couple the coupling element to the extension element.

[Embodiment 27]
In any of embodiments 25-26, the adhesive layer on the first side of the coupling element is patterned.

[Embodiment 28]
In any of embodiments 25-26, the adhesive layer on the first side of the coupling element is continuous.

[Embodiment 29]
In any of embodiments 25-28, the adhesive layer is a pressure sensitive adhesive.

[Embodiment 30]
In any of embodiments 25-29, the coupling element further comprises a hook.

[Embodiment 31]
In any of embodiments 25-30, the adhesive layer of the coupling element is provided in an adhesive area on the first side of the coupling element to at least partially couple the coupling element to the extension element. It is being

[Embodiment 32]
In any of embodiments 25-31, further comprising at least one perforation in the coupling element.

[Embodiment 33]
In any of embodiments 25-32, the securing tape assembly is in a roll.

[Embodiment 34]
(1) a securing element; (2) a coupling element; and (3) an extension element, the securing element having a first surface for attachment to a disposable article or material; has an oppositely oriented second side, the coupling element having a first side for application to a disposable article or material, and a first side oriented oppositely from the first side. the extension element is disposed between the fixation element and the coupling element and is at least partially connected to the fixation element and the coupling element; the extension element has a second surface; (i) a carrier element; (ii) an adhesive layer; and (iii) a release layer, the carrier element comprising: (a) a nonwoven layer having a first side and a second side; ) a polymeric film layer having a first side and a second side, the second side of the polymeric film layer being at least partially disposed on the first side of the nonwoven layer; The adhesive layer is disposed at least partially on the second side of the nonwoven layer, and the release layer is disposed at least partially on the first side of the polymeric film layer. Fixed tape assembly.

[Embodiment 35]
In embodiment 34, the first side of the extension element is at least partially covered by the adhesive layer to couple the extension element to the coupling element.

[Embodiment 36]
In embodiment 34, the second side of the extension element is at least partially covered by the adhesive layer to couple the extension element to the fixation element.

[Embodiment 37]
In any of embodiments 34-36, the adhesive layer on the first side of the extension element is patterned.

[Embodiment 38]
In any of embodiments 34-36, the adhesive layer on the first side of the extension element is continuous.

[Embodiment 39]
In any of embodiments 34-38, the adhesive layer is a pressure sensitive adhesive.

[Embodiment 40]
In any of embodiments 34-39, the adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element to at least partially couple the coupling element to the extension element. It is being

[Embodiment 41]
In any of embodiments 34-39, the adhesive layer of the extension element is on the first side of the extension element to at least partially couple the extension element to the fixation element and the coupling element. provided in the adhesive area.

[Embodiment 42]
In any of embodiments 34-41, further comprising at least one perforation in the coupling element.

[Embodiment 43]
In any of embodiments 34-44, the securing tape assembly is in a roll.

[Embodiment 44]
a fixing element, a coupling element, and an extension element, the fixing element having a first side for application to a disposable article or material, and a second side facing away from the first side. the coupling element has a first surface for affixing to a disposable article or material, and a second surface facing away from the first surface; The extension element is disposed between the fixation element and the coupling element and is at least partially connected to the fixation element and the coupling element, and the extension element has a first surface and a second surface. and wherein the extension element is substantially non-stretchable, and at least one of the securing element and the coupling element comprises the securing tape assembly of embodiment 1.

[Embodiment 45]
In embodiment 44, the extension element comprises polyester.

[Embodiment 46]
In embodiment 44, the extension element comprises polyethylene terephthalate (PET), oriented polypropylene (OPP), biaxially oriented polypropylene (BOPP), or any combination thereof.

[Embodiment 47]
In any of embodiments 44-46, the first side of the extension element is at least partially covered by an adhesive layer.

[Embodiment 48]
In any of embodiments 44-47, the second side of the extension element is at least partially covered by a release layer.

[Embodiment 49]
49. A method of manufacturing a Z-fold securing tape assembly according to any of embodiments 14-48.

[Embodiment 50]
An article comprising a Z-fold securing tape assembly according to any of embodiments 14-48.

[Embodiment 51]
In embodiment 50, the article is a diaper.

The foregoing description and accompanying drawings illustrate the principles of the invention, as well as preferred embodiments and modes of operation. However, the invention should not be construed as limited to the particular embodiments described above. Additional variations on the embodiments described above (e.g., features associated with a particular configuration of the invention may instead be associated with any other configuration of the invention, as appropriate) are contemplated. It will be understood by the trader.

Accordingly, the embodiments described above should be considered illustrative rather than restrictive. It should therefore be understood that variations to the embodiments described above may be made by those skilled in the art without departing from the scope of the invention as defined by the claims.

[Example]
[Deterioration test]
The unwind force (unwind release force) of a securing tape assembly according to aspects of the present disclosure was compared to the unwind force (unwind release force) of three different conventional tapes. Conventional tapes have a silicone nonwoven fabric laminated with a polyolefin layer. A summary of the example fixation tape assemblies and comparative tapes tested can be found in Table 1 below. As can be seen from Table 1, the same adhesive (PSA) was used in Examples 1-3. On the other hand, in Comparative Example 1, Comparative Examples 2 and 3, and Comparative Examples 4 and 5, different adhesives (PSA-C1, PSA-C2, PSA-C3) were used. Each adhesive used in Examples and Comparative Examples is a rubber-based pressure-sensitive adhesive. The silicone coating weight of each comparative tape was varied as shown in Table 1. A roll of tape 66 mm wide was unwinded using an Instron® Model 5943 tensile testing machine (Instron, Massachusetts, USA) at a unwind speed of 1000 mm/min. Testing was repeated for each tape over a six week period at one week intervals. Between tests, the tape was stored at a temperature of 50 degrees.

[Table 1: Tape configuration]

The results of the degradation tests can be seen in Table 2 and FIGS. 4-6 below.

[Table 2: Rewind release results]

As can be seen from the degradation test results, the fixation tape assembly according to the present disclosure reeled cleanly even after 6 weeks and even at low silicone coating weights. In contrast, with conventional tapes, the adhesive at least partially transfers to the nonwoven fabric of an adjacent tape layer, which causes nonwoven fibers to be pulled out of the nonwoven layer and damage the nonwoven fabric when the tape is unwound. An undesirable result occurred. As a result, as shown in Table 2, conventional tapes suffered from nonwoven fabric damage for tapes with moderate silicone coatings and required high silicone coatings to achieve clean unwinding. Figures 5 and 6 show that the tape rewinding force (unwinding release force) is different from the initial unwinding force (unwinding release force) at various time intervals for each example and each comparative example. shows how it works.

[Extension test]
The total elongation of a Z-fold securing tape assembly according to embodiments of the present disclosure (Example 4) was compared to the total elongation of two conventional Z-fold tapes (Comparative Example 6 and Comparative Example 7). Table 3 below shows the materials of construction of each Z-fold tape. The securing element of the nonwoven laminate of Example 4 is a securing tape assembly comprising a rubber-based pressure sensitive adhesive layer adjacent to a nonwoven layer, the nonwoven layer being adjacent to a polyolefin polymer film layer, and the polymer film layer having a silicone release layer. Adjacent to the layer. The elongation test was performed on a 13 mm wide tape at an elongation rate of 1500 mm/min using an Instron® Model 5943 tensile testing machine (manufactured by Instron, Massachusetts, USA). The increase in gauge length of each tape at break or failure was recorded. The total amount of stretch for each tape was calculated by adding the increase in tape length after stretching to the original tape length. The results of the elongation test are shown in FIG. The total elongation of Example 4, which included the fastening tape assembly of the present disclosure as the fastening element and the non-stretchable polyester extension element, was significantly lower than the total elongation of Comparative Examples 6 and 7. As can be seen from FIG. 7, the total amount of elongation in Comparative Example 6 was about four times that of Example 4, and the total amount of elongation in Comparative Example 7 was more than twice that of Example 4.

[Table 3: Configuration of Z-fold tape]

Claims (51)

comprising a carrier element, an adhesive layer, and a release layer;
The carrier element is
a nonwoven fabric layer having a first surface and a second surface;
a polymer film layer having a first side and a second side;
a second side of the polymer film layer is at least partially disposed on the first side of the nonwoven layer;
the adhesive layer is at least partially disposed on the second side of the nonwoven layer;
the release layer is at least partially disposed on the first side of the polymer film layer;
Fixed tape assembly. the carrier element comprises multiple layers of extruded laminates, adhesive bonding, or combinations thereof;
A fixation tape assembly according to claim 1. The nonwoven layer includes a spunbond nonwoven, a carded nonwoven, a spunlace nonwoven, a meltblown nonwoven, or a combination thereof.
A fixation tape assembly according to claim 1 or claim 2. The polymer film layer includes a polyolefin.
A fixation tape assembly according to any one of claims 1 to 3. The adhesive layer includes an acrylic adhesive, a rubber adhesive, a silicone adhesive, or a combination thereof.
A fixation tape assembly according to any one of claims 1 to 4. The rubber adhesive includes styrene-butadiene-styrene block copolymer (SBS), styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene (SB), or a combination thereof.
A fixation tape assembly according to claim 5. the adhesive layer is pressure sensitive;
A fixation tape assembly according to any one of claims 1 to 6. the adhesive layer is patterned;
A fixation tape assembly according to any one of claims 1 to 7. the adhesive layer is continuous;
A fixation tape assembly according to any one of claims 1 to 7. the release layer comprises silicone, fluoropolymer, or a combination thereof;
A fixation tape assembly according to any one of claims 1 to 9. the release layer is a silicone release layer,
A fixation tape assembly according to any one of claims 1 to 9. the release layer is at least partially bonded to the first side of the polymeric film layer using heat;
A fixation tape assembly according to any one of claims 1 to 11. the release layer is at least partially bonded to the first side of the polymeric film layer using ultraviolet or infrared curing;
A fixation tape assembly according to any one of claims 1 to 11. comprising a fixing element, a coupling element, and an extension element;
the fixation element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the coupling element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the extension element is disposed between the fixing element and the coupling element and is at least partially connected to the fixation element and the coupling element;
at least one of the fixation element, the coupling element, and the extension element comprises the fixation tape assembly of claim 1;
Z-fold fixed tape assembly. comprising a fixing element, a coupling element, and an extension element;
the fixation element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the coupling element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the extension element is disposed between the fixing element and the coupling element and is at least partially connected to the fixation element and the coupling element;
The fixing element comprises a carrier element, an adhesive layer and a release layer,
The carrier element is
a nonwoven fabric layer having a first surface and a second surface;
a polymer film layer having a first side and a second side;
a second side of the polymer film layer is at least partially disposed on the first side of the nonwoven layer;
the adhesive layer is at least partially disposed on the second side of the nonwoven layer;
the release layer is at least partially disposed on the first side of the polymer film layer;
Z-fold fixed tape assembly. a first side of the fixation element is at least partially covered by the adhesive layer to couple the fixation element to the extension element;
The Z-fold securing tape assembly of claim 14. the adhesive layer on the first side of the fixation element is patterned;
A Z-fold fixation tape assembly according to claim 14 or claim 15. the adhesive layer on the first side of the fixation element is continuous;
A Z-fold fixation tape assembly according to claim 14 or claim 15. the adhesive layer is a pressure sensitive adhesive;
A Z-fold fastening tape assembly according to any one of claims 14 to 18. The fixation element further comprises a hook.
A Z-fold fastening tape assembly according to any one of claims 14 to 19. the adhesive layer of the fixation element is provided in an adhesive area on the first side of the fixation element to at least partially couple the fixation element to the extension element;
A Z-fold fastening tape assembly according to any one of claims 14 to 19. further comprising a lifting tab at least partially attached to the fixation element;
A Z-fold fastening tape assembly according to any one of claims 14 to 21. further comprising at least one perforation in the coupling element;
A Z-fold fastening tape assembly according to any one of claims 14 to 22. the fixing tape assembly is in the form of a roll;
A Z-fold fastening tape assembly according to any one of claims 14 to 23. comprising a fixing element, a coupling element, and an extension element;
the fixation element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the coupling element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the extension element is disposed between the fixing element and the coupling element and is at least partially connected to the fixation element and the coupling element;
the coupling element comprises a carrier element, an adhesive layer and a release layer;
The carrier element is
a nonwoven fabric layer having a first surface and a second surface;
a polymer film layer having a first side and a second side;
a second side of the polymer film layer is at least partially disposed on the first side of the nonwoven layer;
the adhesive layer is at least partially disposed on the second side of the nonwoven layer;
the release layer is at least partially disposed on the first side of the polymer film layer;
Z-fold fixed tape assembly. a first side of the coupling element is at least partially covered by the adhesive layer to couple the coupling element to the extension element;
The Z-fold securing tape assembly of claim 25. the adhesive layer on the first side of the coupling element is patterned;
A Z-fold fixation tape assembly according to claim 25 or claim 26. the adhesive layer on the first side of the coupling element is continuous;
A Z-fold fixation tape assembly according to claim 25 or claim 26. the adhesive layer is a pressure sensitive adhesive;
A Z-fold securing tape assembly according to any one of claims 25 to 28. The coupling element further comprises a hook.
A Z-fold securing tape assembly according to any one of claims 25 to 29. the adhesive layer of the coupling element is provided in an adhesive area on the first side of the coupling element to at least partially couple the coupling element to the extension element;
A Z-fold securing tape assembly according to any one of claims 25 to 30. further comprising at least one perforation in the coupling element;
A Z-fold fastening tape assembly according to any one of claims 25 to 31. the fixing tape assembly is in the form of a roll;
A Z-fold securing tape assembly according to any one of claims 25 to 32. comprising a fixing element, a coupling element, and an extension element;
the fixation element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the coupling element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the extension element is disposed between the fixing element and the coupling element and is at least partially connected to the fixation element and the coupling element;
The extension element comprises a carrier element, an adhesive layer and a release layer,
The carrier element is
a nonwoven fabric layer having a first surface and a second surface;
a polymer film layer having a first side and a second side;
a second side of the polymer film layer is at least partially disposed on the first side of the nonwoven layer;
the adhesive layer is at least partially disposed on the second side of the nonwoven layer;
the release layer is at least partially disposed on the first side of the polymer film layer;
Z-fold fixed tape assembly. a first side of the extension element is at least partially covered by the adhesive layer to couple the extension element to the coupling element;
35. The Z-fold securing tape assembly of claim 34. a second side of the extension element is at least partially covered by the adhesive layer to couple the extension element to the fixation element;
35. The Z-fold securing tape assembly of claim 34. the adhesive layer on the first side of the extension element is patterned;
A Z-fold securing tape assembly according to any one of claims 34 to 36. the adhesive layer on the first side of the extension element is continuous;
A Z-fold securing tape assembly according to any one of claims 34 to 36. the adhesive layer is a pressure sensitive adhesive;
A Z-fold securing tape assembly according to any one of claims 34 to 38. the adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element to at least partially couple the coupling element to the extension element;
A Z-fold securing tape assembly according to any one of claims 34 to 39. the adhesive layer of the extension element is provided in an adhesive area on the first side of the extension element to at least partially connect the extension element to the fixation element and the coupling element;
A Z-fold securing tape assembly according to any one of claims 34 to 39. further comprising at least one perforation in the coupling element;
A Z-fold securing tape assembly according to any one of claims 34 to 41. the fixing tape assembly is in the form of a roll;
A Z-fold securing tape assembly according to any one of claims 34 to 42. comprising a fixing element, a coupling element, and an extension element;
the fixation element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the coupling element has a first side for affixing to a disposable article or material, and a second side facing away from the first side;
the extension element is disposed between the fixing element and the coupling element and is at least partially connected to the fixation element and the coupling element;
the extension element has a first surface and a second surface;
the extension element is substantially non-extensible;
at least one of the fixation element and the coupling element comprises a fixation tape assembly according to claim 1;
Z-fold fixed tape assembly. the extension element comprises polyester;
45. The Z-fold securing tape assembly of claim 44. The extension element comprises polyethylene terephthalate (PET), oriented polypropylene (OPP), biaxially oriented polypropylene (BOPP), or any combination thereof.
45. The Z-fold securing tape assembly of claim 44. the first side of the extension element is at least partially covered by an adhesive layer;
A Z-fold securing tape assembly according to any one of claims 44 to 46. the second side of the extension element is at least partially covered by a release layer;
A Z-fold securing tape assembly according to any one of claims 44 to 47. 49. A method of manufacturing a Z-fold securing tape assembly according to any one of claims 14 to 48. An article comprising a Z-fold securing tape assembly according to any one of claims 14 to 48. 51. The article of claim 50, wherein the article is a diaper.

Images